Mary Stoiana vs Lulu Sun — Birmingham Round of 32

Birmingham · CHALLENGER · Round of 32
USA
Mary Stoiana
#146WTA
1570ELO
1460Grass ELO
23 yrs
Last 10
LWWLLWWWLW
—
Sets
Monday, 1 June 2026 ·
grass
NZL
Lulu Sun
#109WTA
1668ELO
1586Grass ELO
25 yrs · Left-handed
Last 10
LWWLLLWWLL

Umpiry Score

Pre-match
Stoiana M.
5.0
Heavy underdogUmpiry ScorePartial · surface data limited
  • Surface jump clay↔grass (−0.8)
Sun L.
5.6
Slight disadvantageUmpiry Score
  • Surface jump clay↔grass (−0.8)
Form & Matchup
3.4Grass Elo 1460
Surface ELO
6.6+126 Grass Elo edge
3.8Overall Elo 1570
ELO gap
6.2Overall Elo 1668
5.0No prior meetings
H2H
5.0No prior meetings
Surface form
4.25 of last 10 on grass
0.0
Win streak
0.0
Fatigue & Travel
4.02 three-setters in 14 days
3-set count
7.01 three-setter in 14 days
3.0Clay → Grass
Surface transition
3.0Clay → Grass
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Conditions

Weather forecast
15°CDrizzle
Wind 19 km/hHumidity 90%

Head to head

No previous meetings on record.

Statistics

Recent form
Stoiana M.Sun L.
64%1st serve in+6%58%
62%1st serve points won+8%70%
45%2nd serve points won+6%51%
56%Service points won+6%62%
47%Return points won+7%40%
53%Break points saved+10%63%
1.6Aces / match+4.46
3Double faults / match+0.13.1

Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.